444121121442 has 16 divisors (see below), whose sum is σ = 902803591872. Its totient is φ = 145613482320.

The previous prime is 444121121429. The next prime is 444121121447. The reversal of 444121121442 is 244121121444.

It is not an unprimeable number, because it can be changed into a prime (444121121447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606722478 + ... + 606723209.

It is an arithmetic number, because the mean of its divisors is an integer number (56425224492).

Almost surely, 2^444121121442 is an apocalyptic number.

444121121442 is an abundant number, since it is smaller than the sum of its proper divisors (458682470430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444121121442 is a wasteful number, since it uses less digits than its factorization.

444121121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213445753.

The product of its digits is 8192, while the sum is 30.

Adding to 444121121442 its reverse (244121121444), we get a palindrome (688242242886).

The spelling of 444121121442 in words is "four hundred forty-four billion, one hundred twenty-one million, one hundred twenty-one thousand, four hundred forty-two".